Harley 40MM CV jet tuning kit used for tuning under all conditions added filter, exhaust plus engine work?, this is the kit for you includes four speed jets # 190, 195, 200, 205, three slow jets # 45, 48, 50, needle # R420 and emulsion tube # L079. No drilling required tube and needle you will use under all performance applications, Instructions below.
Tuning guideline
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Exhaust, one size larger on pilot and main, we also sell jets separately
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Exhaust & Air filter one size larger on pilot and one or two on main
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Exhaust, Air filter & Cam one or two size larger on pilot and two or three on main
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Exhaust, Air filter, Cam & head work two or three size larger on pilot and three on main |